SLOW SEDAN

iTrader: (13)

As I started to install the valve spring kit I noticed it came with 10 .565 locators and 6 .505 locators. I notified Summit Customer Support but haven't heard back yet, I'm just looking to get the 10 proper .505 locators to wrap up the install. You may want to check current stock as well so others don't have this issue.

Summitracing

Great spot, and yes we will look at this immediately. If you could, please PM your order details and we'll do an inspection. If you speak with someone in customer service yet today, please let them know you have spoken to Mr. Summit on LS1tech and we're on it as well.

RacerX10

@Summitracing

I'm doing a 5.3 build for a circle track dirt late model. 862 heads, expecting to spin it in the 3000-7000 range in normal race conditions. 750 Race Demon carb on a single-plane intake.

Keeping stock bottom end. It looks like the SUM-8702 might be a good fit for me, and I'd probably go with suggested cam / spring kit on your web site.

Thoughts ? I'm a newbie to all of this so any advice would be appreciated

Thanks !

SLOW SEDAN

iTrader: (13)

Just wanted to follow up here and say thank you for making things right! Summit provided another spring kit to me that worked perfectly, customer service is on point!

Summitracing

SUM-8702 (236/246 110 +0 .612/.612) is a good cam and will keep the valvetrain happy. This cam doesn't have advance ground into it and we'd recommend 3 to 4 degrees of advance in the gear. The only downside is there is a strong likelihood you will need to flycut an intake relief in the piston. Leaving it zero gives you a pretty good chance of avoiding that, but you still need to check.

For the rpm you're turning, the new TFS-2500286P TFS Nano-peened dual springs with 13g chromoly steel retainer will serve you well. We'd recommend a trunnion kit lik the SUM-141560 and installation tool SUM-906011. We'd also recommend our cam kit (CMB-09-0029) that has the timing cover and valve cover gaskets, damper bolt, O-rings, and the damper bolt.

Let us know if there's anything else we can do to help.

RacerX10

is this the spring included in the -DS1 kit? The description doesn't say which spring it is.

Summitracing

It's a little tricky to find it. The SUM-8702-1DS (the end stands for Dual Steel) contains the TFS-2500286P springs. It can be found on the 3rd tab over on Kit Combo contents.

RacerX10

It's not that tricky .. I think just had my head up my ***

Thanks a bunch, I appreciate it !

has10390

Putting a lsa on a ly6 going in to a street rod that weighs about 3400 pounds. Looking at a summit cam. Want a small lope at idle. Using a factory converter. What do you recommend?

Phillip Potter

Putting a 2011 5.3 together with stage 1 ported heads, milled .015. Just got the stage 3 truck cam an I’m planing on upgrading rockers. How would 1.8s work with this cam? Going into a 78 c10 with 3.73 gears and 4l60e. A 2500 stall is recommended, will that give it decent street manners? Thanks

Summitracing

That's going to be a lot of fun. WIth the factory converter, the SUM-8715 Ghost cam will make a ton of power and have the sound you are looking for. You can tune the lope desired by idle speed. In this case, it could be as low as 800 with you 6.0L and that will give it space to not load the converter at your rod's weight.

Summitracing

The Stage 3 truck is a 222/231 112 + 5 .545/.545. You would pick up a little more power in the low and midrange and even at the hp peak, but it will nose over due to the mass of the roller rocker (versus the light and strong factory rockers) and not carry further. If you have adequate .600 lift springs like a TFS-16918-16 beehive and aren't racing it about 6500 all that often, the 1.8 isn't a bad idea..but it's probably better to put your money elsewhere.

Yes, a factory converter works, but the 2500+ converter is a nice plus in acceleration. We just added some 2800-3000 and 3000-3200 converters that are very nice. The P/N for the 2800-3000 is SUM-700341 and is made for us by a USA LS converter specialist of high regard. Between that converter and that cam...and your stage 1 heads, the C10 is going to move out and we don't think you'll find the stall speed at obnoxious even if you're used to stock converters.

My84Z

iTrader: (18)

What size pushrods are everyone using with stock heads?

Summitracing

We recommend a pushrod length checker to verify. People often use 7.400's by default, but the base circle decreases with lift. A .600 lift cam would average about a 7.425, but it varies depending on milled heads, engine tolerances, etc.

Project GatTagO

iTrader: (7)

Can you post a recommended part number for the 7.425 pushrods?

Andrew

Summitracing

Sure, we'd recommend the 11/32 .120 thick wall HDR's. P/N is SUM-14917425. $149.99 for the absolutely phenomenal quality parts.

Project GatTagO

iTrader: (7)

Thank you. I have the ASA cam now, and am using 7.400" pushrods. When I get to swapping the cam, it would be nice to have slightly longer ones available. I am installing the Summit Ghost cam, and I suspect it will need 7.425" pushrods. Am I thinking right?

Andrew

Summitracing

Always check, but very likely yes.

DualQuadDave

iTrader: (6)

Please tell me your converters are not made by B&M or TCI. Thanks!

Dave

Summitracing

We cannot disclose our vendors, but can tell you there are several American converter companies that make very good 4l80, 6l80 converters. You will like how these perform.